LTC1755 - LTC1755是Smart Card Interface

LTC1755是LINEAR凌力尔特公司的一款SIM 接口产品，LTC1755是LTC1755是Smart Card Interface，本站介绍了LTC1755的封装应用图解、特点和优点、功能等，并给出了与LTC1755相关的LINEAR元器件型号供参考。

LTC1755 - LTC1755是Smart Card Interface - SIM 接口 - 接口器件 - 凌力尔特

LTC1755 - Smart Card Interface

LTC1755 - Smart Card Interface - Linear Technology（凌力尔特）

功能描述

The LTC?1755/LTC1756 universal Smart Card interfaces are fully compliant with ISO 7816-3 and EMV specifications. The parts provide the smallest and simplest interface circuits between a host microcontroller and general purpose Smart Cards.

An internal charge pump DC/DC converter delivers regulated 3V or 5V to the Smart Card, while on-chip level shifters allow connection to a low voltage controller. All Smart Card contacts are rated for 10kV ESD, eliminating the need for external ESD protection devices.

Input voltage may range from 2.7V to 6.0V, allowing direct connection to a battery. Internal soft-start mitigates start-up problems that may result when the input power is provided by another regulator. Multiple devices may be paralleled and connected to a single controller for multicard applications.

Battery life is maximized by 60μA operating current and 1μA shutdown current. The narrow SSOP packages minimize PCB area for compact portable systems.

特点

Fully ISO 7816-3 and EMV Compliant (Including Auxiliary I/O Pins)

Buck-Boost Charge Pump Generates 3V or 5V

2.7V to 6.0V Input Voltage Range (LTC1755)

Very Low Operating Current: 60µA

>10kV ESD on All Smart Card Pins

Dynamic Pull-Ups Deliver Fast Signal Rise Times

Soft-Start Limits Inrush Current at Turn On

3V - 5V Signal Level Translators

Shutdown Current: <1µA

Short-Circuit and Overtemperature Protected

Alarm Output Indicates Fault Condition